#include <stdio.h>

int func(char str[]) {
    int i;
    for(i=0;str[i] != '\0';i++){

        }
    int len = i;
    printf("Size1: %d\n", len); 
    return len;
    
}

int func2(char str[]){
    int len2 = 0;
    for(int j=0;str[j] != '\0';j++){
        if(str[j] >= 'a' && str[j] <= 'z'){
            len2++;
        }
    }
    printf("Size2: %d\n", len2); 
    return len2;
}

int main(){
    char test[]="16681";
    int result = func(test);

    char test2[]="AdFEjdGe";
    int result2 = func2(test2);
    return 0;
}